On April 25, 2026, a Boeing-built drone took off from MidAmerica St. Louis Airport in Illinois and flew for about two hours. No pilot. Fully autonomous taxi, takeoff, maneuver, land. For most programs, that would be a straightforward milestone. For the MQ-25A Stingray, it was the culmination of nearly seven years of development delays, manufacturing headaches, and a program that quietly reshaped how the U.S. Navy thinks about carrier aviation. If you want to understand what the Stingray actually is, why the Navy needs it badly, and what's still standing between this drone and an aircraft carrier deck, this is the breakdown.
What Is the MQ-25A Stingray and Where Did It Come From?
The MQ-25A Stingray is the U.S. Navy's first operational carrier-based unmanned aircraft. Its primary job is aerial refueling, flying out from a carrier, meeting up with strike fighters, and offloading fuel so those fighters can stay on station longer or reach targets further away. That might sound unglamorous for a program that cost billions of dollars, but the tanking problem it's solving is one of the most persistent constraints in carrier aviation.
The program has a longer history than most people realize. It traces back to the Navy's cancelled Unmanned Carrier Launched Airborne Surveillance and Strike (UCLASS) program, which envisioned a stealthy long-range strike drone operating from carriers. When UCLASS was scrapped, the Navy took Boeing's existing prototype and pointed it in a completely different direction: dedicated aerial refueling. Boeing had built a prototype for UCLASS called the T-1, which became the test asset that proved the concept actually worked. On June 7, 2021, the T-1 made history by becoming the first unmanned aircraft to ever refuel another aircraft in flight, transferring fuel to a U.S. Navy F/A-18 Super Hornet. That single milestone validated the whole program.
Boeing won the engineering and manufacturing development contract in August 2018, worth $805 million, to build the first four production-representative aircraft. General Atomics and Lockheed Martin also competed. The Navy has since grown the planned fleet to 76 Stingrays at an estimated total acquisition cost of approximately $15.9 billion, according to a 2025 Government Accountability Office assessment, with a per-unit acquisition cost of around $209 million.
The Tanking Problem the MQ-25A Stingray Was Built to Fix
Here's something that doesn't get talked about enough outside defense circles. A significant chunk of F/A-18 Super Hornet sorties on U.S. carriers are not strike missions. They're tanker missions. The Super Hornet, in its two-seat F model, can be configured as a "buddy tanker," carrying a refueling store to pass fuel to other aircraft. The Navy has estimated that as many as 20 to 30 percent of Super Hornet sorties have been dedicated to this role.
That's a striking number. You're taking your primary strike fighter, a highly capable and expensive aircraft, and using it as a gas truck. Every hour a Super Hornet spends tanking is an hour it's not flying strike, air superiority, or electronic warfare missions. And every tanker sortie adds wear on airframes that are already under strain from high operational tempos.
Up to a third of Super Hornet sorties are tanker missions. The Stingray exists to give those aircraft their combat role back.
The MQ-25A is designed to take that mission entirely off the Super Hornet's plate. The notional concept has the Stingray flying out to around 500 nautical miles from the carrier with a full fuel load, meeting up with strike aircraft en route to their targets, topping them off, and returning to the ship. That extends the effective combat radius of the carrier air wing without adding more crewed aircraft or carriers. It's a force multiplier in the most direct sense of the term.
How the MQ-25A Stingray Works: Specs, Fuel Capacity, and Range
The Stingray is a large aircraft by carrier standards. It measures 15.5 meters (51 feet) in length, with a wingspan of 22.9 meters (75 feet) when extended. For carrier storage, those wings fold down to 9.54 meters (just over 31 feet). Its height is 3 meters with wings extended, rising to 4.79 meters when folded. To put that in context, its wingspan rivals the Northrop Grumman E-2D Hawkeye, one of the largest aircraft routinely operated from carrier decks.
Power comes from a Rolls-Royce AE 3007N turbofan engine. For the refueling mission, the Stingray carries a Cobham Aerial Refueling Store pod, the same equipment already used by tanker-configured Super Hornets. That interoperability matters, because it means the Navy isn't introducing a completely new refueling interface across its aircraft fleet. According to a report the Navy submitted to Congress in August 2025, the MQ-25A is expected to deliver between 14,000 and 16,000 pounds of fuel at a range of 500 nautical miles per sortie.
| Specification | Value |
|---|---|
| Length | 51 ft / 15.5 m |
| Wingspan (extended) | 75 ft / 22.9 m |
| Wingspan (folded) | 31.3 ft / 9.54 m |
| Engine | Rolls-Royce AE 3007N turbofan |
| Fuel offload capacity | 14,000–16,000 lb |
| Refueling radius | ~500 nautical miles |
| Primary mission | Unmanned aerial refueling |
| Secondary mission | ISR (EO/IR sensor turret) |
| Total planned fleet | 76 aircraft |
The production-representative aircraft also features a retractable electro-optical and infrared (EO/IR) sensor turret under the chin. That's the hardware enabling the secondary ISR mission, but more on that below. Ground control is handled through the Navy's Unmanned Carrier Aviation Mission Control System, known as UMCS or MD-5, with Lockheed Martin providing the MDCX software backbone. During the April 25, 2026 first flight, this system was validated operationally for the first time alongside the aircraft itself.
Beyond Tanking: The MQ-25A's ISR and Future Mission Roles
The Navy's near-term focus is squarely on the tanker mission. But the Stingray was designed with expansion in mind, and that sensor turret hints at where things could go. The retractable EO/IR turret gives the aircraft the ability to conduct real-time imagery and situational awareness gathering, similar in function to what a platform like the MQ-9 Reaper does in land-based operations. Earlier program documentation also pointed to signals intelligence and automatic identification system payloads as potential additions.
The more interesting long-term vision is the Stingray's role as a foundation for manned-unmanned teaming. Vice Adm. Daniel Cheever, the commander of Naval Air Forces, said at the WEST 2025 conference that fielding the MQ-25A "unlocks the future" of integrating unmanned platforms into carrier air wings. The idea is that successfully operating a large Group 5 unmanned aircraft from a carrier deck, managing it through flight cycles, deck handling, and integration with manned aircraft, proves out the systems and procedures that future collaborative combat aircraft and other unmanned platforms will depend on. The Stingray is less a finished product and more a proving ground.
If you're interested in how the Navy is thinking about manned-unmanned teaming more broadly, our breakdown of collaborative combat aircraft concepts covers the strategic picture in detail.
The Delay Story: What's Been Holding the MQ-25A Back
The Stingray's development history is a case study in how difficult it is to build the first of anything for carrier operations. The program has slipped its major milestones by roughly two years compared to earlier baselines, according to reporting from The Aviationist. The delays have multiple causes: issues with the aircraft's design and build process, problems with coatings applied to metal components, COVID-19 impacts on Boeing's supply chain, and the basic challenge of developing production lines for a completely new type of aircraft.
Boeing has been transparent about this. In one statement to USNI News, the company acknowledged quality escapes in coatings and supply chain disruption, but expressed confidence it was turning a corner. The December 2023 Selected Acquisition Report from the Department of Defense attributed the delays to design and build process issues alongside the pandemic's lingering effects. The GAO also flagged a specific risk in its 2025 Weapon Systems Annual Assessment: the Navy's plan to begin Low-Rate Initial Production before completing testing of the production-representative aircraft creates exposure to further cost increases and delays.
The April 2026 first flight itself had its own last-minute drama. An initial takeoff attempt on April 22 was aborted, with no technical cause publicly released. The successful flight came three days later on April 25, with a Boeing-owned TA-4J Skyhawk and a Navy UC-12M Huron flying chase to provide visual monitoring and telemetry support. The aircraft flew for approximately two hours, demonstrating autonomous taxi, takeoff, maneuvering, and landing while responding to commands from ground operators.
IOC Just Slipped to 2029. What Does That Actually Mean?
The day after the first flight, USNI News reported that the Navy's Internal Operational Capability timeline had slipped again, this time to 2029. That's a significant shift. IOC had been set at 2025, then pushed to 2026, then to FY2027 in official Navy documentation, and now FY2029 according to Navy budget documents. The original plan had the first Stingrays deploying aboard USS Theodore Roosevelt (CVN-71) in 2026. That isn't happening.
IOC is defined precisely in this program as three MQ-25As with trained personnel and equipment deployed on an MQ-25A-capable aircraft carrier. The reasons for the latest slip include carrier availability issues on top of the production manufacturing challenges already in play. Nine EMD aircraft are being built to support the test campaign leading to IOC. FY2026 procurement funding covers three Low-Rate Initial Production aircraft and long-lead items for a second LRIP lot.
What does the delay practically mean? The Super Hornets keep flying tanker missions they weren't designed to prioritize. Airframe fatigue continues accumulating on the fleet. And the manned-unmanned teaming concepts that depend on the Stingray proving out carrier integration remain theoretical for a few more years. The program is still moving, but anyone expecting Stingrays on deck in the near term needs to recalibrate to 2029.
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Why the MQ-25A Still Matters, Delays and All
It's easy to read the delay story and conclude the Stingray is a troubled program. The more accurate read is that it's a genuinely hard problem being solved for the first time. No one had ever built a Group 5 unmanned aircraft specifically designed to operate from a carrier flight deck. The deck handling requirements, the compact storage dimensions, the integration with carrier air traffic control and catapult systems, the autonomous ground control architecture, all of it is new territory. Getting it right takes longer than getting something familiar right.
The Navy has stated a goal of making 60 percent of its carrier air wing unmanned eventually. Whether that specific number holds up over time, the direction of travel is clear. Carriers are getting more capable with fewer crewed aircraft in the mix. The Stingray is the first step down that road, and the lessons being learned right now, about how to certify autonomous systems for carrier use, how to integrate them into deck operations, how to control them from the air, will inform every unmanned carrier platform that comes after it.
The Stingray isn't just a tanker drone. It's the Navy's first proof that unmanned aircraft can belong on a carrier flight deck.
The April 25, 2026 flight was genuinely historic in that context. It was the first flight of a production-representative carrier unmanned aircraft, controlled entirely from a ground station, validated in the air for the first time. The program has real problems and a track record of slipping. It also has a track record of eventually hitting its milestones, just later than planned. If you're following the future of carrier aviation, the MQ-25A Stingray is the program to watch. To go deeper on how the Stingray fits into the broader evolution of the carrier air wing, our full analysis of next-generation Navy aviation is the place to start.
